Authorizing application use by a mobile device

1. A method of operating a communication system, the method comprising:

receiving a location request from a communication device in a location determination system, wherein the location request is generated in response to a request for the location of the communication device made by an application running on the communication device, the location request includes a port identifier and a device identifier, and the device identifier identifies the communication device;

transferring from the location determination system an authorization request that includes the device identifier and the port identifier;

receiving the authorization request in an authorization system;

processing the authorization request in the authorization system to determine an application identifier associated with the application based on the port identifier;

processing the application identifier and the device identifier in the authorization system to determine if the application is authorized to run on the communication device;

transferring an authorization response from the authorization system that indicates if the application is authorized for the communication device;

receiving the authorization response into the location determination system; and

transferring a response to the location request from the location determination system based on the authorization response.

2. The method of claim 1 wherein processing the application identifier and the device identifier to determine if the application is authorized to run on the communication device further comprises comparing the application identifier to a list of authorized applications for the communication device.

3. The method of claim 1 further comprising determining the location of the communication device if the application is authorized to run on the communication device.

4. The method of claim 1 wherein transferring a response from the location determination system based on the authorization response further comprises transferring the location of the communication device if the application is authorized to run on the communication device.

5. The method of claim 1 wherein transferring a location response from the location determination system based on the authorization response further comprises transferring a failure indication if the application is not authorized to run on the communication device.

6. The method of claim 1 wherein processing the authorization request in the authorization system to determine the application identifier associated with the application based on the port identifier comprises translating the port identifier into the application identifier based on a translations table having a plurality of port identifiers stored in association with a plurality of application identifiers.

7. The method of claim 6 wherein each of the plurality of port identifiers is stored in association with a single one of the plurality of application identifiers.

8. The method of claim 1 wherein the communication device comprises a mobile phone.

9. A communication system comprising:

a location determination system configured to receive a location request from a communication device, wherein the location request is generated in response to a request for the location of the communication device made by an application running on the communication device, the location request includes a port identifier and a device identifier, and the device identifier identifies the communication device, transfer an authorization request that includes the device identifier and the port identifier, receiving an authorization response, and transfer a response to the location request based on the authorization response; and

an authorization system in communication with the location determination system and configured to receive the authorization request, process the authorization request to determine an application identifier associated with the application based on the port identifier, process the application identifier and the device identifier in the authorization system to determine if the application is authorized to run on the communication device, and transfer the authorization response from the authorization system that indicates if the application is authorized for the communication device.

10. The communications system of claim 9 wherein the authorization system, to process the application identifier and the device identifier to determine if the application is authorized to run on the communication device, is configured to compare the application identifier to a list of authorized applications for the communication device.

11. The communication system of claim 9 wherein the location determination system is further configured to determine the location of the communication device if the application is authorized to run on the communication device.

12. The communications system of claim 9 wherein the location response indicates the location of the communication device if the application is authorized to run on the communication device.

13. The communications system of claim 9 wherein the location response comprises a failure indication if the application is not authorized to run on the communication device.

14. The communications system of claim 9 wherein the authorization system, to determine the application identifier associated with the application based on the port identifier, is configured to translate the port identifier into the application identifier based on a translations table having a plurality of port identifiers stored in association with a plurality of application identifiers.

15. The communications system of claim 14 wherein each of the plurality of port identifiers is stored in association with a single one of the plurality of application identifiers.

16. The communication system of claim 9 wherein the communication device comprises a mobile phone.

17. A method of operating a communication system, the method comprising:

receiving an authorization request from a location determination system, wherein the authorization request includes a device identifier and a port identifier, wherein the location determination system generated the authorization request in response to receiving a location request from a communication device generated in response to a request for the location of the communication device made by an application running on the communication device, wherein the location request includes the port identifier and the device identifier, and the device identifier identifies the communication device;

processing the authorization request to determine an application identifier associated with the application based on the port identifier;

processing the application identifier and the device identifier to determine if the application is authorized to run on the communication device; and

transferring an authorization response from the authorization system that indicates

if the application is authorized for the communication device, wherein the location determination system receives the authorization response and transfers a response to the location request based on the authorization response.